Scintillation and dosimeter properties of CaF2 transparent ceramic doped with Eu2+

被引：79

作者：

Nakamura, Fumiya ^{[1
]}

Kato, Takumi ^{[1
]}

Okada, Go ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Fukuda, Kentaro ^{[2
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Nara Inst Sci & Technol NAIST, 8916-5 Takayama Cho, Ikoma, Nara 6300192, Japan

[2] Tokuyama Corp, Shibuya Ku, Shibuya 3 Chome, Tokyo 1508383, Japan

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 01期

基金：

日本科学技术振兴机构;

关键词：

Transparent Ceramic; CaF2; Scintillator; Dosimeter; Eu; DARK-MATTER SEARCH; STIMULATED LUMINESCENCE; CALCIUM-FLUORIDE; LOW-TEMPERATURE; SINGLE-CRYSTAL; X-RAY; THERMOLUMINESCENCE; DETECTOR; LIF;

D O I：

10.1016/j.ceramint.2016.09.201

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have developed CaF2 transparent ceramics doped with Eu2+(CaF2:Eu) by using spark plasma sintering (SPS), and investigated the scintillation, dosimeter and photoluminescence (PL) properties. Under X-ray irradiation, all the samples showed emission due to self-trapped excitons (STE) and 5d-4f transition of Eu2+ at 300 and 430 nm, respectively. In addition, weak emission due to the 4f-4f transitions of Eu3+ at 570, 590, 615 and 625 nm were also present in all the samples. Under Cs-137 irradiation, the light yields of the 0.01, 0.02, 0.05 and 0.1 Eu-doped samples were estimated to be 16,400, 15,400, 17,700 and 14,300 photons/MeV, respectively. Thermally stimulated luminescence (TSL) glow curves of all the samples exhibited glow peaks at 100 and 180 degrees C, and these intensities increased linearity as a function of X-ray dose from 0.1 to 1000 mGy. Furthermore, the CaF2:Eu showed not only TSL but also optically stimulated luminescence (OSL).

引用

页码：604 / 609

页数：6

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